Does any one know answer to this has until 3 pm help plz

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Find the value of x. give reasons to justify your solutions! h ∈ ig

What is always true about a positive integer raised to a negative odd power?